package com.caine.policy;

/**
 * @Author: CaineZhu
 * @Description:
 * @Date: Created in 19:17 2020/11/18
 * @Modified By:
 */
public class Tool {
    public void doSomeThing(){
       SecurityManager securityManager = System.getSecurityManager();
       if(securityManager != null){
           securityManager.checkRead("abc");
       }
        System.out.println("check done.");
    }
}
